Vehicle wheel-tire.



I. M. SARTAINl VEHICLE WHEEL TIRE. APPLICATION FILED D12-:0.1, 191s,

1,102,690, Patented July 7, 1914,

3 [mda/M .S'af' ai,

Inventor y 1^ 7 a o Attorneys 'l'Hl-I NURRIS IHTHRS F0. FHUTU-LI'I'HD.,WASHINGTON, D. l'

entre sanas naar` irme.

ISAAC MORGAN SRTAN, OF TRACY CITY, TENNESSEE.

Specification of Letters Patent.

Application filed. December l, 1913. Serial No. 804,075.

To all whom t mag/concern 'I Be it known that l, IsAAo M. SARTAIN, acitizen of the United States, residing at Tracy City, in the county ofGrundy and State of Tennessee, have invented a new and useful VehicleT\7Vlieel-'I`irc, of which the. following is a specification.

The present invention appertains generally to vehicle Wheel tires, andaims to provide a novel and improved spring tire, for supplanting theordinary pneumatic tire.

It is the object of the present invention to provide a spring tire ofnovel and improved construction, which can be employed upon-variousvehicle wheels, and which shall eliminate the disadvantages of theordinary Y pneumatic tire, and at the same time retaining those desirousfeatures of the pneumatic tire, such as resiliency, buoyancy, etc.

Another object of the present'invention is to provide a spring tireembodying a unique assemblage of parts whereby the structure will becomparatively simple and inexpensive, as well as practical and etlicientin its use.

With the foregoing and other objects in view, which will appearv as thedescription proceeds, the invention resides in the combination andarrangement of parts and in the details of construction hereinafterdescribed and claimed, it being understood that changes in the preciseembodiment of the invention herein disclosed, can be made within thescope of what is claimed, without departing from the spirit of theinvention.

The invention has been illustrated in its preferred embodiment in theaccompanying drawing, wherein Figure 1 is a fragmental side elevation ofa vehicle wheel embodying the improved tire structure, a portion of thetire structure being shown in section. Fig. 2 is an enlarged crosssection of the tire structure, taken on the line 2 2 of Fig. 1.

In the drawing, there has been illustrated an arbitrary vehicle wheelembodying vthe rim or felly 1, and the hub 2, which are connected by theusual spokes 3, a band 4 being preferably mounted upon the felly orrim 1. It is to be understood, however, that the wheel structure may beof any suitable character.

In carrying out the present invention, there is provided an annularseries of arcuate tire sections 5, which are preferably stamped fromsheet metal; and which are concaved transversely, as well aslongitudinally. As-

sociated with each tire section 5, is a semiellipticalspring 6, thecentral or body por-y tion 7 of which is curved to'confrom to the band4, to be secured thereto by rivets or other securing members. The endportions- 8 of each spring 6 are curved away from the band 4, and theterminals of the leaves 8 are formed into butts 9 engaging the 'crosspins or rods k10 carried by the terminal portions of the complementingtire'section 5. The terminals of the crossv pins 10 are preferablyriveted through the side portions of the tire sections 5 adjoining theends of the said sections, so that the butts 9 may engagey tire section5, by means of the rivets or other securing members 13, and which has'an inwardly projecting T-member 14 at its other or free end, workingthrough a longitudinal slot 15 in the other tire section 5. The body ofthe T-member 14 works through the slot 15, and stud rollers 16 arejournaled upon the arms or branches of the said T-member, so as 'to workagainst the inner side of the respective tire section 5. yTheoverlapping or yoke sections 12 are similarly disposed, with respect tothe several tire sections 5, so that each of the tire sections 5 carriesone of the supplemental or auxiliary sections 12, which slidably engagesthe companion or adjoining section 5. Thus, a fairly substantial tirestructure is provided, which, due to the sliding engagement of thesections 5 and 12, may expand and contract to provide the requisiteresiliency, the tire sections 5 being adapted to yield under the tensionof the springs 6 for permitting vertical relief. There will be littletendency for the tire structure to have a lateral play, with respect tothe wheel, which would be objectionable, the springs 6 tending tomaintain the tire structure in the median plane of the wheel.

It is preferable to inclose the entire tire. structure by a sheath 17,having its edges `Patented aaiy c, 191i.

overlapping the :inner side lof* thefelly or rim l, and connected bymeans of a lacing f 18, or by other lsuitable means. The' edges 01": thesheath- 17 v may be detachably secured From the foregoing, taken vinconnection with the drawing, the other` advantages and capabilities ofthe present device will be ap- 'parent-,to those versed in the art, itbeing vnoted that the objects aimed at have been carried outsatisfactorily.

VHaving thus described the invention, what iselairned as new is:-

In a vehicle wheel, a rim, a series ofarouate: tiresectionsy surroundingthe same, a series 'of semi-elliptical springs having their i CopiesI'of this` patent may be obtained for j central portions secured totherirn 'and havy ing their ends pivoted to the ends-of the respective4tire' sections, aI lsup'plernental arcuatev tire. sectionjhaving one endsecured to one vend 4of-'ea'ch of the aforesaid tire sections,

and having its other end overlappingl the end of the adjoining tiresection, the iirst` mentioned tire .sections having longitudinal slots,inwardly pro]ect1ng-T-shaped inernbers secured tothe :free ends of thesupple mental tire sections yand `work-ing through the said slots,and'stud rollers journaledv upon .thearrns of the said members andworking against the interior of the irsty mentionedl tire sections.

In testimony that l olairnl the'foregoing as my own, I have heretoaiiiXed iny signature in thev presence of two witnesses.

- isaiic MORGAN sAn'rAiN. i

Witnesses: 'IKnKJinL,` l C.M. WooDLin.

ve' cents each; byradidressing thefomnriissiner of Patentl, yWashington, 13.16. l

